Like all of our ocean
liner models, this large size SS United States model features:

-
Plank-on-frame,
hollow
hull construction (very important), weighing less than
20 lbs
(A solid hull of this model would be over 60 lbs
which feels like a heavy toy and require at two
people to handle and a fortified table to accomodate.)

- Hollow superstructure is comprised of many
individual thin pieces of wood glued together, not
several solid pieces of wood stacking on top one another